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@teiten graine gatwt @time JOSEPH "i-BARILETI, 0F YORK, N. Y,

Letters Patent No. 76,385, dated April 7, 1868.

IMPROVEMENT III 'SEWINGHMAGEINE TO ALL WHM I'I MAY GONCERN:

Be it known that I, JOS-PH W. BARCELTT, of thecity, county, and State ofNew York, have invented new and useful ImprovementsV in Sewing-Machines;and I do hereby declare that the following is a full and exactdescription thcieof, reference being had to the accompanying drawings,and the letters of reference marked thereon.

The nature of the said inventionfconsists chiefly, first, in theconstruction and arrangement of gear-teeth upon the d1ivi-ng-wl1eelin`such a manner that the said wheel is geared directly into a pinionfixed upon the drivingshaft, (shown in iig. 1,) by the use oi` which thesecend gear, generally used in connection with the pinion anddriving-wheel, is dispensed with, and the speed ofthe working parts ornthe machine is greatly accelerated thereby, without increasing "therevolutions of the driving-wheel, especially desirable in machinesadapted for use by hand; second, in the novelconstruotion andarrangement of the means employed in 4sewing the single-loop stitch. ,ln i d Figure is a plan of a single-thread sewing-machine, showing thearrangement of gear-teeth upon the driving-wheel, working directly intoa pinion fixed upon the driving-shaft.

Figure 2 is an end elevation.. p

In the said drawings, A'is-the frame, B the internally-tootheddriving-wheel, engaging with the pinion R on the upper rod C, or shaftwhich actuates the needle-bar. D is the eccentric, which imparts motion,through the connecting-rod E, to tbe'rocling shaft F, hook G, .feed-.camII, and .feed-bar J.v The spring L is uscd to make more positive theaction-0f the feed-bar J'in its downward and backward motions, infeeding the material to be sewn, one end of the said spring being iixedto the under side of the cloth-plate, the otherv end bearing upon theunder side oi' the feed-bar J. By the use of the eccentric, D,the-'driving-shaft may be turned in either direction without destroyingor affecting the operation of the machine. The feed-bar-J is supportedupon the under side of the cloth-plate, and operated bythe cam II. Aprojection is formed upon the 'bar J, for the cam H toact upon toproduce thc forward movement of the said 'bar J, the distance the lattertravels being regulated by the adjustable 'screw K.. The cam H is soformed that it remains, throughoutiits entire movement, in contact withthe under'suri'ace ofthe feed-bar J, preventing thereby any knocking ofthe latter,

which would otherwise .bc occasioned if allowed to drop suddenly in itsdownward or backward m'otion upon' the Isurface of the feedcam II.

Having thus described my improvements for thcproduction of a simple,low-cost, rapidlyoperating sewingmachine, I claim Y 1. In combinationwith the rods G and F, the internally-toothed gear-Wheel B, pinion R,eccentric D, rod E, and hook G, constructed, arranged, and operatingsubstantiallyas and for the purposes set forth.

2. In combination with the rods C and F, the eccentric D, rod'E, cam H,hook Gr, spring L, feed-dog J, and screw K, constructedand operatingsubstantially as and for the purposes set forth.

Josiirrr W. BARTLETT.

x Witnesses:

J. W. Falconer, vl?. W. A'rmNsoN.`

